225/55R16 vs 215/65R15
215/65R15 is a safe swap for 225/55R16 by the usual ±3% rule: the diameter differs by +1.01%.
Speedometer and odometer
With 215/65R15 on a car calibrated for 225/55R16, the speedometer reads 59.4 mph when you're really doing 60, and the odometer under-counts by 1.0%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.3 mph |
| 45 mph | 45.5 mph |
| 60 mph | 60.6 mph |
| 70 mph | 70.7 mph |
| 80 mph | 80.8 mph |
Other sizes close to 225/55R16
- 225/55R16 vs 225/50R17+0.44%
- 225/55R16 vs 205/55R16-3.36%
- 225/55R16 vs 245/45R17-0.24%
- 225/55R16 vs 215/55R16-1.68%
- 225/55R16 vs 215/65R16+4.89%
- 225/55R16 vs 215/60R16+1.61%
- 225/55R16 vs 205/60R16-0.23%
- 225/55R16 vs 205/65R16+2.91%
- 225/55R16 vs 225/60R16+3.44%
- 225/55R16 vs 205/65R15-0.98%
- 225/55R16 vs 225/50R16-3.44%
- 225/55R16 vs 205/55R17+0.52%
Questions
Can I replace 225/55R16 with 215/65R15?
215/65R15 is a safe swap for 225/55R16 by the usual ±3% rule: the diameter differs by +1.01%.
What's the difference between 225/55R16 and 215/65R15?
215/65R15 is 0.26" taller and 10 mm narrower; the sidewall is +0.63". At an indicated 60 mph you'd actually be doing 60.6 mph.
Will 215/65R15 fit on 225/55R16 wheels?
No — 225/55R16 needs a 16" wheel and 215/65R15 a 15" wheel. This is a plus/minus-size swap that changes wheels too.